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Personal Weather Station

A weather station based on the Raspberry Pi

4.4 Configuring the cooridnator

We will use XCTU and our USB programming adapter to configure the first XBee module as a coordinator. We need one coordinator to establish and control the XBee network.

First we will need to plug one of the XBee radio modules into the programming adapter. Make sure to orient the radio in the correct direction on the programming adapter. Most programming adapters have a silkscreen on them that shows the correct orientation of the XBee radio.

Next plug the programming adapter into the USB port on the computer and follow the steps below.

XCTU configuration

1. Start XCTU

2. Click on add device in the top left corner

3. Select the com port that your device is attached to.

4. Leave the Serial settings as 9600 8N1 No flow control and click finish

5. Click on the discovered radio in the top left corner

6. XCTU will read the radio's current settings and display them.

The first step is to flash the first radio module with the proper firmware. Click the update firmware button and select the latest version of ZigBee coordinator AT software. Follow the steps to update the firmware.

Once the firmware is updated, we need to update some of the default settings to match the configuration that we need for the weather station. Compare the values in the table below to the current settings in XCTU. For each setting that is different from the table below, change the value and write the new value to the XBee radio.

XBee coordinator configuration settings

Setting Value Notes
ID 57 45 41 54 48 45 52 31 (ASCII WEATHER1) 64 bit PAN ID
SC 3FFF SCAN all channels for devices
SD 3 Scan duration (default)
ZS 0 ZigBee stack profile 0
NJ FF Allow nodes to join at any time
DH 00 13 A2 00 Upper 4 bytes of Destination address
DL 40 BE 2D E9 Lower 4 bytes of Destination address
NI WEATHER BASE Node identifier 20 byte ASCII string (optional)
NH 1E Max number of hops (leave default)
BH 0 Number of broadcast hops to use 0-Max (leave default)
AR FF Agregate routing (leave default)
DD 30000 Device type (leave default)
NT 3C Node discovery timeout Value*100ms (leave default)
NO 3 Network discovery options (leave default)
CR 3 PAN conflict threshold (leave default)
Zigbee Addressing
SE E8 Source endpoint (default)
DE E8 Destination endpoint (default)
CI 11 Cluster identifier (default)
RF Interfacing
PL 4 Highest (default)
PM 1 Boost mode (default)
EE 0 Encryption enable (Disabled)
EO 0 Encryption Options
KY (leave blank) Link Key
NK (leave blank) Network Key
Serial Interfacing
BD 3 9600 bps
NB 0 No parity
SB 0 1 stop bit
RO 3 Paketization timeout # of characters of silence before transmitting RF data.
D7 1 CTS Flow control
D6 0 Disabled
AT command options
CT 64 Command mode timeout (default)
GT 0x3E8 Guard Time (default)
CC 2B Command Character (default)
Sleep Modes
SP AF0 Sleep period (Value*10ms)
SN 20 Number of Sleep periods
IO Settings
D0 1 Commisioning button
D1 0 Disabled
D2 0 Disabled
D3 0 Disabled
D4 0 Disabled
D5 1 Associated Indicator
P0 1 RSSI PWM Output
P1 0 Disabled
P2 0 Disabled
PR 1FFF Pull-up resistors enable
LT 0 Associated LED blink time
RP 28 RSSI PWM timer
IO Sampling
IR 0 IO Sample rate
IC 0 IO Change notification
V+ 0 Supply voltage sampling
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Page last updated: April 3, 2016..

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